A liquid outlet device capable of realizing annular uniform liquid outlet

Abstract

The application discloses a liquid outlet device capable of realizing annular uniform liquid outlet, which comprises a liquid outlet body; a plurality of groups of radially extending liquid inlets are arranged on the outer side of the liquid outlet body, an even liquid cavity, a working cavity and an annular liquid outlet arranged at the bottom of the working cavity are arranged in the liquid outlet body, wherein the even liquid cavity is communicated with the plurality of groups of liquid inlets; the working cavity is communicated with the even liquid cavity through a communication channel; a workpiece mounting portion for placing a rod-shaped workpiece is arranged in the working cavity, and a workpiece placing hole extending along the axis direction of the liquid outlet body is arranged in the workpiece mounting portion. Based on the above design, the liquid outlet device capable of realizing annular uniform liquid outlet can meet the requirements of high flow rate and high uniform annular liquid supply required by electrolytic machining of the rod-shaped workpiece.

Description

Technical Field

[0001] This invention belongs to the field of mechanical manufacturing, and specifically relates to a liquid discharge device that can achieve uniform annular liquid discharge. Background Technology

[0002] In the field of electrolytic machining, the uniformity of the working fluid flow is extremely important, as it determines the quality and even the success or failure of the electrolytic machining process. Uniform working fluid flow velocity at the outlet cross-section is a necessary prerequisite. In electrolytic machining of the outer surface of a rod-shaped workpiece, the tool cathode surrounds the workpiece, forming a ring-shaped machining area. At this point, the electrolyte must circulate around the outer surface of the workpiece and be sprayed at high speed and uniformly into the ring-shaped machining gap along the workpiece's axial direction, thus achieving high-speed, uniform annular fluid supply.

[0003] However, to achieve this goal, it is necessary to first ensure that the internal pressure of the electrolyte spraying chamber is uniform, and secondly, to construct an annular spray nozzle; but currently there is no annular spraying device in the field of electrolytic processing that can achieve uniform electrolyte supply. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a liquid dispensing device that can achieve uniform annular liquid dispensing. The liquid dispensing device can meet the requirements of high flow rate and high uniformity annular liquid supply for electrolytic machining of rod-shaped workpieces.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is:

[0006] A liquid dispensing device capable of achieving uniform annular liquid dispensing includes a liquid dispensing body; the outer side of the liquid dispensing body is provided with multiple sets of radially extending liquid inlets, and the interior of the liquid dispensing body is provided with a liquid equalization chamber, a working chamber, and an annular liquid outlet located at the bottom of the working chamber; the liquid equalization chamber is connected to the multiple sets of liquid inlets; the working chamber is connected to the liquid equalization chamber through a connecting channel; wherein, the working chamber is provided with a workpiece mounting part for placing rod-shaped workpieces, and the workpiece mounting part is provided with a workpiece placement hole extending along the axial direction of the liquid dispensing body.

[0007] Preferably, the liquid outlet body includes a first liquid outlet body and a second liquid outlet body, wherein the first liquid outlet body and the second liquid outlet body are connected by a splicing structure.

[0008] Preferably, a first partition ring is provided at the center of the second liquid outlet body; the space inside the first partition ring constitutes the working chamber, and the space between the outside of the first partition ring and the liquid inlet constitutes the liquid equalization chamber; a liquid outlet is provided at the bottom of the working chamber.

[0009] Preferably, a second partition ring is provided on the first liquid outlet body, the second partition ring is coaxially arranged with the first partition ring, and the second partition ring is located outside the first partition ring; the space between the second partition ring and the liquid inlet forms a first liquid equalization chamber; the space between the second partition ring and the first partition ring forms a second liquid equalization chamber; the bottom of the first liquid equalization chamber and the bottom of the second liquid equalization chamber are connected, and the top of the second liquid equalization chamber is connected to the top of the working chamber.

[0010] Preferably, there is a gap between the bottom of the workpiece mounting part and the liquid outlet, and the rod-shaped workpiece placed in the workpiece placement hole passes through the liquid outlet. The gap between the outer side of the workpiece mounting part and the liquid outlet forms the annular liquid outlet.

[0011] Preferably, the bottom of the workpiece mounting portion is flush with the liquid outlet, and the gap between the bottom of the workpiece mounting portion and the liquid outlet forms the annular liquid outlet.

[0012] Preferably, the workpiece mounting part is located at the center of the first liquid outlet body and is coaxially arranged with the first partition ring; the outer wall of the bottom of the workpiece mounting part is inverted conical, and the liquid outlet of the second liquid outlet body is provided with an inverted conical surface at the corresponding position of the bottom of the workpiece mounting part.

[0013] Preferably, the second liquid outlet body is provided with a columnar guide section between the workpiece mounting part and the liquid outlet, and the height H of the columnar guide section is less than 10cm.

[0014] Preferably, the inner wall of the columnar guide section is provided with a spiral groove.

[0015] Preferably, the communication channel is a connecting hole or connecting groove provided on the first partition ring or / and the second partition ring, or the gap between the first partition ring and the second liquid outlet body or / and the gap between the second partition ring and the first liquid outlet body.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] 1. In the electrolyte dispensing device of the present invention, which enables uniform annular liquid dispensing, the electrolyte entering from the inlet first enters the liquid equalization chamber and is mixed in the liquid equalization chamber. After the pressure distribution in the liquid equalization chamber is uniform, it enters the working chamber, which allows the electrolyte to be sprayed out more uniformly.

[0018] 2. The liquid dispensing device of the present invention, which enables uniform annular liquid dispensing, has a continuous and complete annular liquid outlet at the bottom of the working chamber, thereby enabling annular direct injection.

[0019] 3. The liquid dispensing device of the present invention, which enables uniform annular liquid dispensing, is provided with a workpiece mounting part, and the rod-shaped workpiece is installed in the workpiece placement hole of the workpiece mounting part, thereby avoiding corrosion of the non-processed parts of the rod-shaped workpiece from contact with the electrolyte. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the first specific embodiment of the liquid dispensing device of the present invention, which can achieve uniform annular liquid dispensing.

[0021] Figure 2 This is a cross-sectional view of the first specific embodiment of the liquid dispensing device of the present invention, which enables uniform annular liquid dispensing.

[0022] Figure 3 This is a cross-sectional view of a second specific embodiment of the liquid dispensing device of the present invention, which enables uniform annular liquid dispensing.

[0023] Figure 4 This is a cross-sectional view of a third specific embodiment of the liquid dispensing device of the present invention, which enables uniform annular liquid dispensing.

[0024] Figure 5 for Figure 4 A three-dimensional structural diagram of the second liquid outlet body.

[0025] Figure 6 This is a cross-sectional view of the fourth specific embodiment of the liquid dispensing device of the present invention, which enables uniform annular liquid dispensing.

[0026] Figure 7 This is a cross-sectional view of the fifth specific embodiment of the liquid dispensing device of the present invention, which enables uniform annular liquid dispensing.

[0027] Figure 8 This is a cross-sectional view of the sixth specific embodiment of the liquid dispensing device of the present invention, which enables uniform annular liquid dispensing. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0029] Example 1

[0030] See Figure 1 and Figure 2The liquid dispensing device of the present invention, which enables uniform annular liquid dispensing, includes a liquid dispensing body; multiple sets of radially extending liquid inlets 1 are provided on the outer side of the liquid dispensing body; the liquid dispensing body also includes a liquid equalization chamber 4, a working chamber 5, and an annular liquid dispensing port 3 at the bottom of the working chamber 5; the liquid equalization chamber 4 is connected to the multiple sets of liquid inlets 1; the working chamber 5 is connected to the liquid equalization chamber 4 through a connecting channel; the working chamber 5 is provided with a workpiece mounting part 7 for placing workpieces, and the workpiece mounting part 7 is provided with a workpiece placement hole 6 extending along the axial direction of the liquid dispensing body.

[0031] See Figure 1 and Figure 2 The liquid outlet body includes a first liquid outlet body and a second liquid outlet body. Multiple sets of liquid inlets 1 are disposed on the first liquid outlet body and are evenly arranged along the circumference of the first liquid outlet body. The first liquid outlet body and the second liquid outlet body are connected by a splicing structure 2. The splicing structure 2 includes a protruding connecting part disposed at the lower end of the first liquid outlet body and a groove disposed at the upper end of the second liquid outlet body that cooperates with the protruding connecting part. The first liquid outlet body and the second liquid outlet body are assembled by fitting the protruding connecting part and the groove.

[0032] By adopting the upper and lower splicing structure 2, the concave and convex parts of the first liquid outlet body and the second liquid outlet body are interlocked with each other, so that the gap between the first liquid outlet body and the second liquid outlet body forms multiple cavities. The electrolyte entering from the liquid inlet 1 first enters the liquid equalization cavity 4 and is fully mixed before entering the working cavity 5, and then is sprayed out from the outlet of the working cavity 5. The liquid is mixed more thoroughly, and the liquid spraying flow rate on the cross-section of the annular liquid outlet 3 is kept consistent to the greatest extent.

[0033] To further ensure the sealing between the first liquid outlet body and the second liquid outlet body, each of the first liquid outlet body and the second liquid outlet body is provided with a sealing groove at its connection point. A sealing ring is provided in the sealing groove. By setting the above sealing structure, electrolyte can be prevented from flowing out from the connection gap between the first liquid outlet body and the second liquid outlet body.

[0034] See Figure 1 and Figure 2 The second liquid outlet body has a first partition ring 11 at its center, the inner space of the first partition ring 11 forms the working chamber 5, and the bottom of the working chamber 5 has a liquid outlet; the space between the outer side of the first partition ring 11 and the liquid inlet 1 forms the liquid equalization chamber 4.

[0035] In this embodiment, the first partition ring 11 and the second liquid outlet body are integral structures. There is a gap between the upper end of the first partition ring 11 and the first liquid outlet body, and the gap constitutes the connecting channel. The electrolyte in the liquid equalization chamber 4 enters the working chamber 5 through the gap.

[0036] See Figure 1 and Figure 2 The workpiece mounting part 7 is located at the center of the first liquid outlet body and is coaxially arranged with the first partition ring 11. When the first liquid outlet body and the second liquid outlet body cooperate, the workpiece mounting part 7 in the first liquid outlet body extends into the first partition ring 11 in the second liquid outlet body, and the bottom of the workpiece mounting part 7 is flush with the liquid outlet. The gap between the bottom of the workpiece mounting part 7 and the liquid outlet forms the annular liquid outlet 3. This allows the non-processed parts of the rod-shaped workpiece located in the workpiece placement hole 6 to not come into contact with the electrolyte, thereby avoiding corrosion of the non-processed parts of the rod-shaped workpiece by the electrolyte.

[0037] In this embodiment, the outer wall of the bottom of the workpiece mounting part 7 is conical and the cone angle is less than 10 degrees. Correspondingly, the outlet of the second liquid outlet body is provided with an inverted conical surface at the position corresponding to the bottom of the workpiece mounting part 7. The slope of the inverted conical surface is the same as the cone angle of the bottom of the workpiece mounting part 7.

[0038] See Figure 1 and Figure 2 The working principle of the liquid dispensing device of the present invention, which enables uniform annular liquid dispensing, is as follows:

[0039] During operation, the rod-shaped workpiece is inserted into the workpiece placement hole 6, and then electrolyte is introduced. The electrolyte first enters the equalization chamber 4 from the inlet 1 and is mixed in the equalization chamber 4. After the pressure distribution in the equalization chamber 4 is uniform, it enters the working chamber 5 along the connecting channel, and finally sprays out from the annular outlet 3 at the bottom of the working chamber 5, surrounding the rod-shaped workpiece. In the above process, the electrolyte enters the working chamber 5 after being mixed in the equalization chamber 4, which can maximize the uniformity of the electrolyte flow rate at each point of the annular outlet 3. If the electrolyte in the equalization chamber 4 is not sufficiently mixed, one or more equalization chambers 4 can be added to achieve more uniform liquid mixing. In this embodiment, there is one equalization chamber 4.

[0040] Example 2

[0041] See Figure 3 The difference between this embodiment and Embodiment 1 is that:

[0042] (1) There is a gap between the bottom of the workpiece mounting part 7 and the liquid outlet. The rod-shaped workpiece placed in the workpiece placement hole 6 passes through the liquid outlet. The gap between the outer side of the rod-shaped workpiece and the liquid outlet constitutes the annular liquid outlet 3.

[0043] (2) The bottom of the workpiece mounting part 7 is cylindrical, that is, the bottom of the workpiece mounting part 7 is not provided with a conical surface. In addition, some non-processed parts of the rod-shaped workpiece are exposed in the electrolyte.

[0044] Example 3

[0045] See Figure 4 The difference between this embodiment and Embodiment 1 is that:

[0046] A second partition ring 10 is provided on the first liquid outlet body. The second partition ring 10 is coaxially arranged with the first partition ring 11, and the second partition ring 10 is located outside the first partition ring 11. The space between the second partition ring 10 and the liquid inlet 1 forms a first liquid equalization chamber 4A. The space between the second partition ring 10 and the first partition ring 11 forms a second liquid equalization chamber 4B. The bottom of the first liquid equalization chamber 4A and the bottom of the second liquid equalization chamber 4B are connected, and the top of the second liquid equalization chamber 4B is connected to the top of the working chamber 5. By providing multiple liquid equalization chambers, more uniform liquid mixing can be achieved.

[0047] Example 4

[0048] See Figure 5 and Figure 6 The difference between this embodiment and Embodiment 1 is that:

[0049] The upper end of the first partition ring 11 extends upward to connect with the first liquid outlet body. The connecting channel 12 consists of multiple sets of connecting holes or connecting grooves provided on the side wall of the first partition ring 11. The two sides of the connecting holes or connecting grooves are respectively connected to the working chamber 5 and the liquid equalization chamber 4.

[0050] Example 5

[0051] See Figure 7 The difference between this embodiment and Embodiment 1 is that:

[0052] The second liquid outlet body has a columnar guide section between the workpiece mounting part 7 and the liquid outlet, and the height H of the columnar guide section is less than 10cm.

[0053] Since the annular outlet 3 is inverted conical, the electrolyte will have a radial impact on the rod-shaped workpiece 8, thus affecting the outlet flow rate and uniformity. To address this, by increasing the thickness of the base plate, a columnar guide section is provided between the workpiece mounting part 7 and the outlet, thereby ensuring that the electrolyte is axially sprayed into the processing gap at a zero angle, closely adhering to the wall of the rod-shaped workpiece 8. This allows for a higher flow rate and more uniform electrolyte spraying, achieving a completely axial spray at zero angle, which has the advantages of more stable liquid flow and less velocity loss.

[0054] in addition, Figure 7 The number 9 in the diagram is the cathode.

[0055] Example 6

[0056] See Figure 8 The difference between this embodiment and embodiment 5 is that:

[0057] The inner wall of the columnar guide section is provided with a spiral groove 13. By providing the spiral groove 13, the electrolyte can be spirally sprayed into the working surface of the rod-shaped workpiece, which makes the electrolyte mix more evenly and less prone to dispersion.

[0058] The above are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A liquid dispensing device capable of achieving uniform annular liquid dispensing, characterized in that, The system includes a liquid outlet body; the outer side of the liquid outlet body is provided with multiple sets of radially extending liquid inlets, and the interior of the liquid outlet body is provided with a liquid equalization chamber, a working chamber, and an annular liquid outlet located at the bottom of the working chamber; the liquid equalization chamber is connected to the multiple sets of liquid inlets; the working chamber is connected to the liquid equalization chamber through a connecting channel; wherein, the working chamber is provided with a workpiece mounting part for placing rod-shaped workpieces, and the workpiece mounting part is provided with a workpiece placement hole extending along the axial direction of the liquid outlet body; The liquid outlet body includes a first liquid outlet body and a second liquid outlet body, wherein the first liquid outlet body and the second liquid outlet body are connected by a splicing structure. A first partition ring is provided at the center of the second liquid outlet body; the space inside the first partition ring constitutes the working chamber, and the space between the outer side of the first partition ring and the liquid inlet constitutes the liquid equalization chamber; a liquid outlet is provided at the bottom of the working chamber. The first liquid outlet body is provided with a second partition ring, which is coaxially arranged with the first partition ring and located outside the first partition ring; the space between the second partition ring and the liquid inlet forms a first liquid equalization chamber; the space between the second partition ring and the first partition ring forms a second liquid equalization chamber; the bottom of the first liquid equalization chamber and the bottom of the second liquid equalization chamber are connected, and the top of the second liquid equalization chamber is connected to the top of the working chamber.

2. The liquid dispensing device for achieving uniform annular liquid dispensing according to claim 1, characterized in that, There is a gap between the bottom of the workpiece mounting part and the liquid outlet. The rod-shaped workpiece placed in the workpiece placement hole passes through the liquid outlet. The gap between the outer side of the workpiece mounting part and the liquid outlet forms the annular liquid outlet.

3. The liquid dispensing device for achieving uniform annular liquid dispensing according to claim 1, characterized in that, The bottom of the workpiece mounting part is flush with the liquid outlet, and the gap between the bottom of the workpiece mounting part and the liquid outlet forms the annular liquid outlet.

4. The liquid dispensing device for achieving uniform annular liquid dispensing according to claim 3, characterized in that, The workpiece mounting part is located at the center of the first liquid outlet body and is coaxially arranged with the first partition ring; the outer wall of the bottom of the workpiece mounting part is inverted conical, and the liquid outlet of the second liquid outlet body is provided with an inverted conical surface at the corresponding position of the bottom of the workpiece mounting part.

5. The liquid dispensing device for achieving uniform annular liquid dispensing according to claim 4, characterized in that, The second liquid outlet body has a columnar guide section between the workpiece mounting part and the liquid outlet, and the height H of the columnar guide section is less than 10cm.

6. The liquid dispensing device for achieving uniform annular liquid dispensing according to claim 5, characterized in that, The inner wall of the columnar guide section is provided with spiral grooves.

7. The liquid dispensing device for achieving uniform annular liquid dispensing according to claim 1, characterized in that, The communication channel is a connecting hole or connecting groove provided on the first partition ring or / and the second partition ring, or the gap between the first partition ring and the second liquid outlet body or / and the gap between the second partition ring and the first liquid outlet body constitutes the communication channel.

Images